【摘要】 随着油田开发技术发展,固井质量评价技术中的检测参数逐步全面,井眼周向测量分辨率渐进提高。通过阐述固井质量检测技术的发展,分析了目前常规声波变密度测井和日臻成熟的扇区水泥胶结测井、声波伽马密度测井的技术特点。设计技术对比方案,对大量现场实测资料进行统计分析发现,在声波变密度测井评价为好或中等的某些井段,扇区水泥胶结和声波伽马密度测井反映存在水泥局部缺失等窜流隐患,表明常规声波变密度检测精度和分辨能力不能完全适应现阶段油田的需求,有必要发展更精细的固井评价技术在油田推广应用。更多还原

【Abstract】 With the advancing of oilfield development technology, the detection parameters of cementing quality evaluation technology are gradually comprehensive, and the resolution of borehole circumferential measurement is gradually improved. By expounding the development of cementing quality detection technology, the technical features of conventional acoustic variable density logging and mature segmented bond logging as well as acoustic-gamma density logging are analyzed. By engineering the technical comparison scheme and statistically analyzing a large number of field test data, it is found that in some well sections evaluated as good or medium reservoir by acoustic variable density logging, the sector cement bond and acoustic-gamma density logging results reflect the potential channeling hazards such as partial cement loss, which indicates that the conventional acoustic variable density detection accuracy and resolution ability cannot fully meet the needs of oilfields at present. Therefore, it is necessary to develop more sophisticated cementing evaluation technology for the oilfields.更多还原